package xin.mydreams.mybill.util;

import javax.servlet.http.HttpServletRequest;

/**
 * ip和浏览器工具类
 * 
 * @Type NetworkUtil.java
 * @Desc
 * @author 谷泽昊
 * @date 2017年12月7日 上午10:15:38
 * @version
 */
public class NetworkUtil {

	/**
	 * 获取用户真实IP地址，不使用request.getRemoteAddr();的原因是有可能用户使用了代理软件方式避免真实IP地址, 参考文章：
	 * http://developer.51cto.com/art/201111/305181.htm
	 * 
	 * 可是，如果通过了多级反向代理的话，X-Forwarded-For的值并不止一个，而是一串IP值，究竟哪个才是真正的用户端的真实IP呢？
	 * 答案是取X-Forwarded-For中第一个非unknown的有效IP字符串。
	 * 
	 * 如：X-Forwarded-For：192.168.1.110, 192.168.1.120, 192.168.1.130,
	 * 192.168.1.100
	 * 
	 * 用户真实IP为： 192.168.1.110
	 * 
	 * @date Created at 2017年12月7日 上午10:15:25
	 * @Author 谷泽昊
	 * @param request
	 * @return
	 */
	public static String getIpAddress(HttpServletRequest request) {
		String ip = request.getHeader("X-Forwarded-For");
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
				ip = request.getHeader("Proxy-Client-IP");
			}
			if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
				ip = request.getHeader("WL-Proxy-Client-IP");
			}
			if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
				ip = request.getHeader("HTTP_CLIENT_IP");
			}
			if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
				ip = request.getHeader("HTTP_X_FORWARDED_FOR");
			}
			if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
				ip = request.getRemoteAddr();
			}
		} else if (ip.length() > 15) {
			String[] ips = ip.split(",");
			for (int index = 0; index < ips.length; index++) {
				String strIp = (String) ips[index];
				if (!("unknown".equalsIgnoreCase(strIp))) {
					ip = strIp;
					break;
				}
			}
		}
		return ip;
	}

	/**
	 * 获取操作系统,浏览器及浏览器版本信息 参考网站
	 * http://mybill.csdn.net/zhouseawater/article/details/54972727
	 * 
	 * @param request
	 * @return
	 */
	public static String getOsAndBrowserInfo(HttpServletRequest request) {
		String browserDetails = request.getHeader("User-Agent");
		String userAgent = browserDetails;
		String user = userAgent.toLowerCase();

		String os = "";
		String browser = "";

		// =================OS Info=======================
		if (userAgent.toLowerCase().indexOf("windows") >= 0) {
			os = "Windows";
		} else if (userAgent.toLowerCase().indexOf("mac") >= 0) {
			os = "Mac";
		} else if (userAgent.toLowerCase().indexOf("x11") >= 0) {
			os = "Unix";
		} else if (userAgent.toLowerCase().indexOf("android") >= 0) {
			os = "Android";
		} else if (userAgent.toLowerCase().indexOf("iphone") >= 0) {
			os = "IPhone";
		} else {
			os = "UnKnown, More-Info: " + userAgent;
		}
		// ===============Browser===========================
		if (user.contains("edge")) {
			browser = (userAgent.substring(userAgent.indexOf("Edge")).split(" ")[0]).replace("/", "-");
		} else if (user.contains("msie")) {
			String substring = userAgent.substring(userAgent.indexOf("MSIE")).split(";")[0];
			browser = substring.split(" ")[0].replace("MSIE", "IE") + "-" + substring.split(" ")[1];
		} else if (user.contains("safari") && user.contains("version")) {
			browser = (userAgent.substring(userAgent.indexOf("Safari")).split(" ")[0]).split("/")[0] + "-"
					+ (userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
		} else if (user.contains("opr") || user.contains("opera")) {
			if (user.contains("opera")) {
				browser = (userAgent.substring(userAgent.indexOf("Opera")).split(" ")[0]).split("/")[0] + "-"
						+ (userAgent.substring(userAgent.indexOf("Version")).split(" ")[0]).split("/")[1];
			} else if (user.contains("opr")) {
				browser = ((userAgent.substring(userAgent.indexOf("OPR")).split(" ")[0]).replace("/", "-"))
						.replace("OPR", "Opera");
			}

		} else if (user.contains("chrome")) {
			browser = (userAgent.substring(userAgent.indexOf("Chrome")).split(" ")[0]).replace("/", "-");
		} else if ((user.indexOf("mozilla/7.0") > -1) || (user.indexOf("netscape6") != -1)
				|| (user.indexOf("mozilla/4.7") != -1) || (user.indexOf("mozilla/4.78") != -1)
				|| (user.indexOf("mozilla/4.08") != -1) || (user.indexOf("mozilla/3") != -1)) {
			browser = "Netscape-?";

		} else if (user.contains("firefox")) {
			browser = (userAgent.substring(userAgent.indexOf("Firefox")).split(" ")[0]).replace("/", "-");
		} else if (user.contains("rv")) {
			String IEVersion = (userAgent.substring(userAgent.indexOf("rv")).split(" ")[0]).replace("rv:", "-");
			browser = "IE" + IEVersion.substring(0, IEVersion.length() - 1);
		} else {
			browser = "UnKnown, More-Info: " + userAgent;
		}

		return os + " --- " + browser;
	}
}
